Explosion Proof Centrifuge – Offshore Diesel Purification


Dolphin Centrifuge manufactures explosion proof industrial centrifuge systems for use in hazardous Location. Our control panels are designed for locations where concentrations of flammable gases, dust, vapors, or combustible particles can cause ignition and explosion. Explosion proof centrifuge configurations can be supplied with NEMA 7 (USA), ATEX approval and IECEX approval and certifications, based on final installation location. Detailed categorization of hazardous area classifications can be seen here.

Industries requiring explosion proof centrifuges:

  • Offshore O&G Platforms
  • Refineries
  • Hemp Extraction
  • Mines
  • Chemical Plants
  • Biodiesel Production

In addition to new equipment designed for explosion proof environments, we have upgraded reconditioned Alfa Laval centrifuges to explosion proof standards for specific customer requests.

Dolphin Centrifuge has manufactured hazardous area centrifuge skids for:

– Diesel fuel purification on off-shore oil/gas platforms
– Ethanol based solvent extraction of CBD oil
– Crude oil tank bottoms at Salt-water Disposal Sites (SWD)
– Biodiesel / Glycerin separation (with methanol vapors)
– Gear oil purification in mines

Depending on the customer specific requirement, we can supply a cast aluminum NEMA 7 Enclosure or a NEMA 4 Enclosure with Nitrogen Purge system installed. It is important for the customer to consult with a qualified expert to categorize the exact classification for their equipment. Dolphin Centrifuge has supplied NEMA 7 explosion proof centrifuge systems as well as centrifuge modules suitable for UL Class 1 Div 2 and other similar environments.

It is not always feasible to locate the control system on or near the centrifuge equipment. In such cases, we have designed explosion proof centrifuges with non-explosion-proof control panels. These control systems are to be remotely mounted in a non-hazardous area. This option also offers considerable advantages in cost and manufacturing lead times.

The offshore centrifuge skids shown above process diesel fuel at 3 GPM flow-rate.

Alfa Laval MAB103 Solid-Retaining Centrifuge System for Diesel Fuel including:

  • Alfa Laval MAB103 Solid-Bowl Disc Centrifuge
  • UL Class 1 Div 1 Explosion Proof Motor
  • Feed and Discharge Pump
  • NEMA 7 Explosion Proof Controls